TY - JOUR
T1 - Interferometric measurement of concentration polarization profile for dissolved species in unstirred batch hyperfiltration (reverse osmosis)
AU - Mahlab, D.
AU - Ben Yosef, N.
AU - Belfort, G.
PY - 1980/1/1
Y1 - 1980/1/1
N2 - Using a high pressure test cell with windows, laser interference patterns in a 62 mg/1 NaCl solution adjacent to the membrane were photographed after the establishment of steady state for 30 atm. constant applied pressure. The mathematical solution of the concentration profile was, with ray tracing, analytically fitted to the experimental interference pattern. From this analysis at 28 ± 1°C and 30 atm. pressure, an intrinsic salt rejection of R - 0.86 ± 0.02 and reduced permeation flux of v - 100 cm-1 for the DDS-990 cellulose acetate membrane was obtained. Limitations of the method, sensitivity and accuracy of the results are also discussed.
AB - Using a high pressure test cell with windows, laser interference patterns in a 62 mg/1 NaCl solution adjacent to the membrane were photographed after the establishment of steady state for 30 atm. constant applied pressure. The mathematical solution of the concentration profile was, with ray tracing, analytically fitted to the experimental interference pattern. From this analysis at 28 ± 1°C and 30 atm. pressure, an intrinsic salt rejection of R - 0.86 ± 0.02 and reduced permeation flux of v - 100 cm-1 for the DDS-990 cellulose acetate membrane was obtained. Limitations of the method, sensitivity and accuracy of the results are also discussed.
UR - http://www.scopus.com/inward/record.url?scp=0019203449&partnerID=8YFLogxK
U2 - 10.1080/00986448008912532
DO - 10.1080/00986448008912532
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:0019203449
SN - 0098-6445
VL - 6
SP - 225
EP - 243
JO - Chemical Engineering Communications
JF - Chemical Engineering Communications
IS - 4-5
ER -